ROCK CRESS. 
43 
The variety rosea has gracefully arching spikes of 
pale-rose flowers. A. Lemoinei has white plumes of 
blossom in July or August, and has given rise to a 
fine hybrid. A. chinensis crossed with A. compacta 
has recently produced a magnificent rosy-flowered 
hybrid. All the kinds are most easily increased by 
division of the rootstock in spring or early autumn. 
ASTRANTIA major (Masterwort) . — This distinct 
looking plant of the Carrot family is really a native 
of the Alps. It grows 1 to 2 feet high, and from June 
to August produces its heads of small white or pink 
blossoms which are surrounded with an involucre of 
distinctly veined pinkish bracts. Other species are 
carniolica , white ; helleborifolia, pink ; and minor, 
rosy-white. They all flourish in ordinary soil with a 
little sand or grit, and plenty of humus in it, and are 
most readily increased by division in spring. 
AUBRIETIA (Purple Bock Cress). — Charming ever- 
green plants for carpeting slopes or nooks in the 
rockery, or for an edging or carpet in shrubberies and 
borders. They like a rich sandy soil, and may be 
increased from seeds and cuttings ; by layering the 
slender prostrate stems during the summer ; and also 
by carefully dividing the stocks in early autumn 
or in spring. There are many fine kinds in cultivation, 
all remarkable for the profusion with which they bear 
their purple, lilac, or violet-purple blossoms from 
March to June. A. deltoidea is the best-known species 
with lilac-purple flowers. There are several forms with 
distinct names, like Columnse, Leichtlini , and Mooreana, 
recognised by their different shades of purple. Other 
forms are Bougainvillei (light purple) ; Campbelli or 
